Endocrine Abstracts

Opioid analgesia impairs gonadal function in healthy men and women. Methadone, a synthetic opioid is used in opioid addicts to prevent relapse due its longer-lasting effects and is known to cause hypogonadism. Little data exists on the prevalence of this and the mechanism through which this occurs.Men (n=147), mean age 36.2 years (S.D 7.2) attending a drug-treatment rehabilitation centre for methadone maintenance therapy had early m...

Introduction and methods: Controversy exists regarding the optimal dosing regimen of radioactive iodine (RAI) for the treatment of hyperthyroidism. The dose of RAI was individualised, based on the size of the thyroid gland and 24-h RAI uptake. We performed a 10-year retrospective analysis of patients with hyperthyroidism treated with variable dose RAI, with a cure defined as eu- or hypothyroidism.Results: One hundred and forty-nine patients with hyperthy...